rename iMX-RT

src/drivers/imxrt.h

@@ -0,0 +1,18 @@
+#pragma once
+
+struct mg_tcpip_driver_imxrt_data {
+  // MDC clock divider. MDC clock is derived from IPS Bus clock (ipg_clk),
+  // must not exceed 2.5MHz. Configuration for clock range 2.36~2.50 MHz
+  // 37.5.1.8.2, Table 37-46 : f = ipg_clk / (2(mdc_cr + 1))
+  //    ipg_clk       mdc_cr VALUE
+  //    --------------------------
+  //                  -1  <-- TODO() tell driver to guess the value
+  //    25 MHz         4
+  //    33 MHz         6
+  //    40 MHz         7
+  //    50 MHz         9
+  //    66 MHz        13
+  int mdc_cr;  // Valid values: -1 to 63
+
+  uint8_t phy_addr;  // PHY address
+};